Image denoising fusion method and system based on high and low bit data of camera

Abstract

The invention discloses an image denoising fusion method and system based on high and low bit data of a camera. The method comprises the steps of reading an image, and performing preprocessing on theimage; estimating and fitting the inherent noise of each column in the image through a mode of robust least square fitting according to pre-estimated per-column noise between camera sensors so as to eliminate the inherent per-column noise between the camera sensors of the camera in the image; constructing double 11-bit mapping table, accomplishing one-to-one fusion on two images according to the corresponding mapping table, wherein adjustment for the construction of the mapping tables is accomplished through different relevant parameters, and finally realizing continuous weight construction byusing a corresponding power function. According to the method, problems such as poor image synthesis effect caused by the inherent noise of the sensors can be effectively avoided, smooth fusion of high and low bit images is realized, and problems such as generation of synthesis seams are avoided.

Description

technical field [0001] The invention relates to the technical fields of image processing, computational photography and microscopic imaging, in particular to an image denoising fusion method and system based on high and low data of a camera. Background technique [0002] Nowadays, cameras have been used in all aspects of life, including medical treatment, biological experiments, physics, chemistry and so on. Therefore, the fineness of the images captured by the camera also greatly limits or expands the fineness of related experiments. [0003] In biological experiments, it is often required to effectively distinguish small light intensity differences, so cameras with higher effective digits are often required to complete such distinctions. In many existing grayscale cameras, 8-bit bit depth coding is often used to describe the image. However, in biological experiments with a high degree of sensitivity, in order to distinguish more subtle things, the experimenter often need...

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Problems solved by technology

[0005] On the other hand, since the analog signal directly collected by the camera itself has different response functions of different scan columns, how to complete the processing of the corresponding inherent noise before synthesis to ensure the stability of the synthesis effect is also an important technology. problem

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